Crawford mun fs



CRAWFORD MUN'N'S, F NEW YORK, N. Y.

Letters Patent No. 78,469, dated Jima 2, 1868.

IMROVEMENT IN STUMP-EXTRAGTOR.

filip Srlptnltrfaah la in tiges hitters gaten mit melting putt nf tige smut.

To ALL WIIOM 1T MAY CONGERN;l y

Be it known that I, CRMVFORDv MUNNS, of the city, county, and Stateof New York, have invented a new and improved Stump-Extractor; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable' those skilled in the art to make and use the same, reference' being had to the accompanying drawings, formng'part of this specification, in which- Figui-c l is a section ol my improved stump-extractor, through the line a: x, fig. 2.

Figure 2 is a plan View of the machine when turned so as to bear partially upon one of the leaves.

Figure 3 is an end view of the machine with the leaves turnedup for transportation.

Similar letters of reference indicate corresponding parts.

This invention relates to the extraction of roots and stumps, and consists in pivoting the frame bearing the mechanism to a platform, whereby it can `readily be moved on its pivot to front in any direction, together with other devices perfecting the whole, Vas willvhe hereinafter more fully set forth.

In the drawings, Aie the general frame ofthe machine, resting on a platform, B B B', and pivoted thereto by the pintle-bolt d, substantially as shown.

l The rope C is wound by a drum, D, which is provided with a toothed wheel, b, engaging with the pinionfa on the crank-shaft E, by which, latter the power applied to thecrank L is transmitted to 'wind up the rope C.

G is a roller, over which the rope passes. and this roller, together with the crank-shaft and drum D, has hearings in the frame A, as shown. *I

A y-wheel, H, is mounted on th'e crank-shaft for the common purpose oi' a y-wheel.

The base of the frame A extends from the pintle in the direction ofthe stump, and thereby provides a firm base, which sustains the strain when the stump is being extracted, andl enables a single pintle to be employed, for the roller G, bearing above the drum D, serves as a point of application of the strain, which the rope, C sustains, and this strain tends tclbear the base of the frameA upon the platform, which action relieves the pintle-bolt from the most of the strain. v y

The frame A being of a general triangular form, its apex provides a point, on which the rope C will act tol hear the base upon the platform, as beforementioned, while the vertical part ofv the frame supplies the proper location for the drum'and crank-shaft.v l p The platform is composed of two hinged leaves, B B', attached by stout hinges, m, to a middle part, B, for the purpose of enabling the platform to be moreeasily transport-ed by turning up the said leaves, in the manner shown at fig. 3, for, when so arranged, the machine can be placed upon a truck or 'cart of ordinary width and removed to anotherpoint of operation.

In the drawings only ,two'gear-wheels are shown, which, for small stumps,`would ysupply the pcwerrequi site, but, in practice, if greater'power is desired, the'drum D can be geared up by the interpolation of' another shal'tbearing large and small toothed wheels to gear with those sh'own, the drum being placed lower down in y the frame for that purpose. i f

A shoulder, r, iig. 3, is formed on the crank-shaft for the purpose of enabling the pinion a to be thrown out of gear with the wheel l) when the rope-is to be drawnoff of the drum.'

The pinion and wheel are shown thus disengagedat`g. 2. i A

The platform is secured from slipping on the grounch'when strain is brought upon the stump, by the iron pins (J, which are driven through holes in the corners of the platform, as shown.

These holes slant toward the middle point of the roller G, whereby the pins can be drawn from the ground by the rope ot' the machine when the platform is to be moved.

In operating my machine, the platform is placed in a central position amidst. the stumps, and firmly secured by the pins J. v

The rope is extended, and the claw-bar K, or other suitable claw or hook, is caught under one of the roots,

as shown in iig. 1.

The crank, h, is turned swiftlytill the elnck purent" the rope is taken in, which ennhlee the {1y-wheel' H to gather suilicient momentum to stort theistuinp from its hold in the ground.

The crank is then'turned till the stump'is extracted. p

By menne of the pintflc d the frame is turned to any point; nnd,.if the rope'he s'uiciently ioug, o. large circular space can he cleared withoixt moving the mnhino. v 4

vWhen all the stumps within the radins of the rope have been extracted, the rope is'wound up so noarly'that the claw can be caught under the head of the pins J, 'the machine being turned toward euch corner for that purpose. 'I I Afew turns of' the crank Will'draw the pins. i .When the platform is putdown, the pins-nre driven with a sledgediamme'r or mnul.

This machine will ,answer n number of purposes, auch ns drawing up the earth when l:i woll isbeing dug, or furnishing the traction-mechanism for moving heavy bodies, as' large stones and the like.y

Itis simple and easily construoted,/nnd, from the lpuinoiplos of its construction, will sustain great strain without breaking down. i

I claim n new, and desire to secure by Letters Pntent- I 1. The pintle d, in combination with n stump-extrncior nud its bose or platform, substantially as described for the purpose specified.

.2. The triangular frames A. A of a etump-extrnctor, arranged substantially as shown und described, and secured to therbase, 18,' by means of a. pintle-bolt, d, or its equivalent, for the purpoee set forth.

3. The hinged leaves B B and base B, in combination with a'stump-extractor, all constructed, arranged, und operating suhstnnliallyns 'shown and described for thc purpose set forth.

L 1. The platform B, snbstasntinllyas shown anddeecribed, when combined with the pintlebolt d of avstump extracting machine, ail :1s sot forth.

The above specification of my invention signed by me, this 10th day of' December, 1867.

- CRAWFORD MUNNS. Witnesses I WM. F. lsl'cNAMnnA, ALEX. F. ROBERTS. 

